@inproceedings{sgem2010paper, title = {LEAD FRACTIONATION IN A SLUDGE-AMENDED MONTMORILLONITIC VERTISOL}, author = {V. M. Ngole and G.-I. E. Ekosse}, booktitle = {10th International Multidisciplinary Scientific GeoConference SGEM2010}, year = {2010}, pages = {165-172}, publisher = {SGEM Scientific GeoConference}, doi = {} }